Final Exam Vocabulary Review - 7th Grade Science

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Across
  1. 2. Process by which producers use sunlight to convert water and carbon dioxide into oxygen and sugar
  2. 4. Non-living
  3. 5. A natural resource that can be replaced by nature at the same rate at which the resource is consumed by humans
  4. 8. A pure substance made of only one kind of atom
  5. 10. A relationship between two organisms of different species where one benefits and the other is harmed
  6. 11. A group of atoms bonded together
  7. 12. energy due to motion
  8. 14. Any form of water that falls from clouds and reaches Earth's surface.
  9. 15. heat energy
  10. 19. A combination of two or more substances that are not chemically combined
  11. 20. An interaction in which one organism captures and feeds on another organism
  12. 21. A substance made up of atoms of two or more different elements joined by chemical bonds
  13. 25. Matter cannot be created or destroyed
  14. 29. An organism that breaks down wastes and dead organisms
  15. 30. Process that releases energy from food in the presence of oxygen
  16. 32. A relationship between two species in which both species benefit
  17. 34. An organism that can make its own food.
  18. 36. A reaction that releases energy in the form of heat (feels warmer)
  19. 37. A mixture in which components are evenly distributed throughout the mixture
  20. 38. A living thing
  21. 39. The largest population that an area can support
  22. 40. A species, often introduced by humans, that enters a new ecosystem and out-competes native species within the ecosystem.
Down
  1. 1. A change in matter that produces one or more new substances
  2. 3. The benefits that humas receive from ecosystems.
  3. 6. A reaction that absorbs energy in the form of heat (feels colder)
  4. 7. Smallest particle of an element
  5. 9. A mixture in which components are NOT evenly distributed throughout the mixture
  6. 13. A change in a substance that does not change its identity
  7. 16. The part of the water cycle where water vapor turns into clouds.
  8. 17. All the different populations that live together in an area
  9. 18. Material that is not found in nature, but made chemically from natrual resources.
  10. 22. An organism that obtains energy by feeding on other organisms
  11. 23. A community of organisms and their abiotic environment
  12. 24. A relationship between two organisms in which one organism benefits and the other is unaffected
  13. 26. The part of the water cycle where liquid water turns into to water vapor.
  14. 27. A natural resource that is not replaced in a useful time frame.
  15. 28. A group of organisms of the same species that live in the same area
  16. 31. the energy that an object has because of its position
  17. 33. living
  18. 35. When two or more organisms need the same resources at the same time.